Lasing properties of a Yb ion in tetragonal LuPO4 and LuVO4 isomorphic crystals: A comparative study
Dou Xiao-Dan, Yang Jing-Nan, He Jie, Wang Li-Sha, Han Wen-Juan, Xu Hong-Hao, Zhong De-Gao, Teng Bing, Liu Jun-Hai
       

(color online) (a) π- and (b) σ-polarized emission cross-section spectra for Yb:LuPO4 and Yb:LuVO4.